What is the cheapest airline that flies from Ontario to Duluth Intl?

United Airlines is the most popular carrier operating from Ontario to Duluth Intl

When did momondo last update prices for flights from Ontario Airport to Duluth Intl Airport?

Prices for flights from Ontario Airport to Duluth Intl Airport were last updated today.

How old do you have to be to fly from Ontario Airport to Duluth Intl Airport?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario Airport to Duluth Intl Airport.

What documentation or ID do you need to fly to Duluth Intl Airport?

The travel and health documents required for your trip to Duluth Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Duluth Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$272 Cheap Flights from Ontario to Duluth in 2025/26

1 adult

0 bags

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Find the cheapest flights from Ontario to Duluth

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

10:30 pm - 11:11 am

ONT

DLH

10h 41m2 stops

11:51 am - 9:05 pm

DLH

ONT

11h 14m2 stops

$507Delta

Sat, Jan 31 - Sat, Feb 7

6:54 pm - 10:44 am

ONT

DLH

13h 50m2 stops

3:14 pm - 10:26 pm

DLH

ONT

9h 12m1 stop

$623United Airlines

Fri, May 8 - Mon, May 11

5:05 am - 2:30 pm

ONT

DLH

31h 25m2 stops

3:05 pm - 8:58 pm

DLH

ONT

31h 53m2 stops

$667United Airlines

Sat, Jan 17 - Wed, Jan 21

5:05 am - 9:59 pm

ONT

DLH

38h 54m2 stops

3:05 pm - 8:58 pm

DLH

ONT

31h 53m2 stops

$702United Airlines

Sat, Jan 17 - Wed, Jan 21

6:00 am - 9:59 pm

ONT

DLH

13h 59m2 stops

3:05 pm - 8:58 pm

DLH

ONT

31h 53m3 stops

$724United Airlines

Sat, Jan 31 - Sat, Feb 7

1:24 pm - 9:59 pm

ONT

DLH

30h 35m3 stops

3:05 pm - 12:47 pm

DLH

ONT

23h 42m2 stops

$728United Airlines

Sat, Jan 17 - Wed, Jan 21

5:05 am - 9:59 pm

ONT

DLH

38h 54m2 stops

3:05 pm - 12:47 pm

DLH

ONT

23h 42m2 stops

$738United Airlines

Sat, Jan 17 - Wed, Jan 21

1:24 pm - 9:59 pm

ONT

DLH

30h 35m3 stops

3:05 pm - 12:47 pm

DLH

ONT

23h 42m2 stops

$757United Airlines

Sat, Jan 17 - Wed, Jan 21

1:24 pm - 9:59 pm

ONT

DLH

30h 35m3 stops

3:05 pm - 12:47 pm

DLH

ONT

23h 42m2 stops

$764United Airlines

Sat, Jan 17 - Wed, Jan 21

7:00 am - 9:57 pm

ONT

DLH

12h 57m1 stop

3:14 pm - 10:26 pm

DLH

ONT

9h 12m1 stop

$868United Airlines

Fri, May 8 - Mon, May 11

United Airlines flights from Ontario to Duluth

Our best United Airlines deals on Ontario to Duluth flight tickets

United Airlines

May 8

ONT6:54 pmOntario

13h 50m

2 stops

DLH10:44 amDuluth Intl

May 11

DLH3:14 pmDuluth Intl

9h 12m

1 stop

ONT10:26 pmOntario

$623

Find similar

United Airlines

Jan 17

ONT5:05 amOntario

31h 25m

2 stops

DLH2:30 pmDuluth Intl

Jan 21

DLH3:05 pmDuluth Intl

31h 53m

2 stops

ONT8:58 pmOntario

$667

Find similar

United Airlines

Jan 17

ONT1:24 pmOntario

23h 06m

2 stops

DLH2:30 pmDuluth Intl

Jan 21

DLH3:05 pmDuluth Intl

23h 42m

2 stops

ONT12:47 pmOntario

$704

Find similar

Fly from

Fly to

Route

Depart

Return

Price

OntarioDuluth

ONT - DLH

ONTDLH

Ontario

Sat 1/31

10:30 pm-11:11 am

2 stops10h 41m

Duluth Intl

Sat 2/7

11:51 am-9:05 pm

2 stops11h 14m

$507

OntarioDuluth

ONT - DLH

ONTDLH

Ontario

Fri 5/8

6:54 pm-10:44 am

2 stops13h 50m

Duluth Intl

Mon 5/11

3:14 pm-10:26 pm

1 stop9h 12m

$623

OntarioDuluth

ONT - DLH

ONTDLH

Ontario

Sat 1/17

5:05 am-2:30 pm

2 stops31h 25m

Duluth Intl

Wed 1/21

3:05 pm-8:58 pm

2 stops31h 53m

$667

OntarioDuluth

ONT - DLH

ONTDLH

Ontario

Sat 1/17

5:05 am-9:59 pm

2 stops38h 54m

Duluth Intl

Wed 1/21

3:05 pm-8:58 pm

2 stops31h 53m

$702

OntarioDuluth

ONT - DLH

ONTDLH

Ontario

Sat 1/31

6:00 am-9:59 pm

2 stops13h 59m

Duluth Intl

Sat 2/7

3:05 pm-8:58 pm

3 stops31h 53m

$724

OntarioDuluth

ONT - DLH

ONTDLH

Ontario

Sat 1/17

1:24 pm-9:59 pm

3 stops30h 35m

Duluth Intl

Wed 1/21

3:05 pm-12:47 pm

2 stops23h 42m

$728

OntarioDuluth

ONT - DLH

ONTDLH

Ontario

Sat 1/17

5:05 am-9:59 pm

2 stops38h 54m

Duluth Intl

Wed 1/21

3:05 pm-12:47 pm

2 stops23h 42m

$738

OntarioDuluth

ONT - DLH

ONTDLH

Ontario

Sat 1/17

1:24 pm-9:59 pm

3 stops30h 35m

Duluth Intl

Wed 1/21

3:05 pm-12:47 pm

2 stops23h 42m

$757

OntarioDuluth

ONT - DLH

ONTDLH

Ontario

Sat 1/17

1:24 pm-9:59 pm

3 stops30h 35m

Duluth Intl

Wed 1/21

3:05 pm-12:47 pm

2 stops23h 42m

$764

OntarioDuluth

ONT - DLH

ONTDLH

Ontario

Fri 5/8

7:00 am-9:57 pm

1 stop12h 57m

Duluth Intl

Mon 5/11

3:14 pm-10:26 pm

1 stop9h 12m

$868

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 12 resultsSorted by cheapest first

How to get the cheapest flight ticket from Ontario to Duluth

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest day to depart on your flight to Duluth?

The cheapest day to depart from Ontario to Duluth is on a Tuesday when prices can be found for as low as $287. On the other hand, Sunday is the most expensive day to depart from Ontario because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $737.

What is the cheapest time of day to depart on your flight to Duluth?

Flying to Duluth from Ontario in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $358 when looking at flights departing in the afternoon. In contrast, the most expensive time of day to depart to Duluth is in the morning when prices are around $531.

Can stopping save me money on Ontario to Duluth flights?

You could potentially save up to 37% on your flight if you consider stops on a Ontario to Duluth flight.

When to book flights from Ontario to Duluth

Are you open to changing your travel dates? Check out the ideal times to fly from Ontario to Duluth according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Ontario to Duluth (ONT to DLH) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ontario to Duluth

Fastest flight time	12h 57m
Direct flights	None

The fastest flight from Ontario to Duluth takes 12h 57m

There are no direct flights from Ontario to Duluth. There are no popular flight routes from Ontario to Duluth.

Search flight deals

How far is Ontario to Duluth Intl by plane?
Duluth Intl is 1593.1 mi away from Ontario. Typically, this will take 12h 57m by plane in normal conditions.
When did momondo last update prices for flights from Ontario Airport to Duluth Intl Airport?
Prices for flights from Ontario Airport to Duluth Intl Airport were last updated today.
How old do you have to be to fly from Ontario Airport to Duluth Intl Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario Airport to Duluth Intl Airport.
What documentation or ID do you need to fly to Duluth Intl Airport?
The travel and health documents required for your trip to Duluth Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Duluth Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Two Harbors

Hayward

Superior

Cloquet

Why use momondo?

Why should I use momondo to find a flight deal from Ontario to Duluth?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Duluth from Ontario.

Can I find flights from Ontario to Duluth with flexible booking policies on momondo?

All flight searches from Ontario to Duluth on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Ontario to Duluth?

Once you have performed a search for Ontario to Duluth flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Ontario to Duluth right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Ontario to Duluth flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.